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A new species of titi monkey, Catticebus, is described based on five specimens obtained from the state of Sergipe, north-eastern Brazil. It is a member of the Personatus group, but is easily distinguished from the other forms. The most noticeable differences are in the pelage coloration, the forehead, crown, and ear being black, and having a zebra-like, striped pattern on the anterior half of the back. Distinct features of its dental morphology and craniometry are also described.
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Kobayashi et al. (1999) studied this question.
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